when the skin is harmed and serves to flush out microscopic organisms and/or antigens from the injury then it starts bleeding. Also, bleeding actuates haemostasis which is started by exudate parts, for example, clotting factors. Fibrinogen in the exudate inspires the clotting mechanism bringing about coagulation of the exudates (blood without cells and platelets) and, together with the development of a fibrin network, creates a clot the injury making bleeding stop. The clot dries to shape a scab and gives strength and support to the harmed tissue. Haemostasis in this way, assumes a defensive part and additionally adding to effective wound
